Ice-cream freezer.



W. H. JONES.

ICE CREAM FREEZER. APPLICATION FILED DEC.3I. l9l4.

1 ,162,368. Patented Nov. 30, 1915.

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Big L MTNESSES' ccLUMmA PLANODRAPH CO" WASHINGTON. D. c

W. H. JONES.

ICE CREAM FREEZER.

APPLICATION FILED 050.31. 19M.

1,162,368. r Patented Nov. 30, 1915.

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I k IIF 1-! I 20% 1519-5 37 Q AINVENTDR- WI'TNEEEES: BY

ATTORNEY.

COLUMBIA PLANOGRAPH CO.,WASHINGTON, D. C.

WILLIAM H. JONES, OF YOUNGSTOX N, OHIO.

ICE-CREAM FREEZER.

Specification of Letters Patent. Patented N 30 1915 Application filedDecember 31, 1914. Serial 1t'0..879,822.v

To all whom it may concern Be it known that I, WILLIAMVH. Jonas, acitizen of the United States of America, and resident of Youngstown,county of Mahoning, and State of Ohio, have invented certain new anduseful Improvements in Ice-Cream Freezers, of which the following isaspecification. I 1 This invention relates broadly to ice cream freezers,and more particularly to an apparatus for freezing liquids, as in theproduction of ice-cream, ices and the like.

The primary object of the invention is to I provide an apparatus for thefreezing of liquids in which refrigeration is accomplished with unusualrapidity, and which is adapted to deliver the frozen material in asubstantially continuous stream.

A. further object of the invention is to provide in a freezer of largecapacity means for rapidly agitating the brine to obtain refri erationof a highly efficient character. And a still further object within thecontemplation of the invention is to simplify and structurally improvethat type of freezers in which the refrigeration of liquids and thedelivery thereof is a practically continuous performance. I With theseand other objects in View, the invention resides in thefeatures ofconstruetion, arrangement of parts, and combinations of elements whichwill hereinafter be fully described, reference being had to theaccompanying drawings, forming apart of this specification, in which-Figure l'is aside elevation of the inven tion; Fig. 2 1s a front endelevation of the i same; Fig. 3 is a longitudinal section takensubstantially on the line 3-3, Fig. 2; Fig. 4 is a cross section on theline l1, Fig. 1; Fig. 5 is a longitudinal sectional View of theagitating device which operates within the cylinder, said section beingtaken on line 55, Fig. 4; and Fig. 6 is a similar section taken on theline 6-6, Fig. 4. L

' Referring to said drawings, in which like designating charactersdistinguishlike parts throughout the several views, 1 indicates a casingwhich is suitably supported, as upon legs 2. Mounted in a centralposition within said casing is a longitudinally extending slightlytapered form and having suitably,

attached heads 3 and t at itsfront and rear ends, respectively. I l Acollar 5, preferably Lshaped in cross section, closely embraces thefront end of the can, and seated againstthe front and rear faces,respectively, of the upright portion of said collar'is said head 3 and aflange 6 formed on a cylindrical neck portion 7 which extends forwardfrom the front end of the casing :1, bolts 8 being directed through saidhead 3, collar 5 and flange for maintaining the assembled relation ofsaid Parts. i i

The head 1 has a central outwardly extending hollow boss or sleeve 9which protrudes through the rear end of the casing 1 and which isexteriorly threaded for the reception of a nut or c0llar 10 by means ofwhich said head is maintained in rigid relation to said casing. Journaled within said sleeve 9 is one end of a shaft 11 to which rotationis communicated from a source of motive power, as through abelt-connected to a pulley 12 fixed on'said. shaft. Detachably coupledto said shaft 11, as by a squareended stem 13 formed on said shaftseated in a similarly shaped socket 14: provided in its end, s anagitating device which is herein "designated in a general way by thenumeral 15 and which comprises an axis or shaft 16,

tionally, serve, when said mixture-,is in a frozen condition, to conveyforward and deliver the latter through adischargev opening or spout 21providedin the head 3, said opening or spout being normally'maintainedclosed by a pivoted closure or Valve plate 22.

Said c'onveyer blades 20 are preferably disposed in two or more "series,the blades of each series being in alinement. Carried on the outer endsof the blades of each series is a longitudinally extending scrapingblade 37 adapted, when the agitating device 15 is rotated, to scrapeagainst the inner surface of the can, as illustrated in Fig. l. Alsocarried by said axial shaft 16 is one or more series of longitudinallyalined arms 23, each series supporting a plurality of slender rods orwires 24 designed to stir and smooth the frozen material.

Located between the curved bottom of the casing 1 and the under side ofthe freezer can is a brine agitator which consists of a shaft 38carrying a plurality of longitudinally disposed blades or paddles 25,said shaft having its opposite ends. suitably journaled 'in oppositeends of the casing, as shown in Fig. 3. Said agitator is propelled inany suitable manner, as by intermeshing gears 26 and 27 carried,respectively, by the shaft 38 outside the casing and'by the shaft 11.Open wire screens 28 disposed on opposite sides of the; agitator betweenthe bottom of the casing and the under side of the can serve to preventice introduced within the casing about said can from interfering withthe rotation of said agitator. Said agitator has a forwardly taperedform, as shown in Fig. 3, such form being required when the rearwardlytapered form of can is employed, it being desirable that the blades25thereof operate close to the body of the can.

Located upon the, top of the casing 1 is a receptacle 29 in which themixture, or batch, to be frozen is preliminarily placed. Communicationis had between said receptacle and the can through a valve closed pipe30 having one end opening into the bottom of said receptacle and itsopposite end opening into the can through the head 8.

p Suitable packing and compressing glands 31 and 31 therefor areprovided on the shafts 11 and 38 for preventing leakage through theshaft bearings.

While the brine agitator hereinbefore described will ordinarily be foundsufiicient for agitating the brine and providing efficientrefrigeration, a pump, as 32, may, additionally, be provided should itbe desired to produce a greater circulation of the brine.

, Said pump is connected by a pipe 33 to the lower part of the interiorof the casing, and a pipe 34 leads therefrom into the upper part of thecasing. The pump may be driven in any appropriate manner, as by a belt35 driven from a pulley 36 on the outer end ofshaft 38. An overflow pipe39 of any suitable height may be provided for carrying off excess brine.

As is obvious from the foregoing description, the agitating and scrapingdevice which rotates within the freezer can acts to effectively stir thematerial admitted to said can through the pipe 30 whereby a uniformfreezing of said material is effected. The inclined blades 20 thereoffurther tend to feed the frozen material forward toward the delivery endof the can, and serve to force it through the opening or spout 21 whenthe valve plate 22 is moved to a position opening the latter. Passingthrough said spout, the material may drop directly to a suitably placedcan 4.1 or other package, as shown in Fig. 1. The agitator for thebrine, or cooling agent, revolves rapidly, producing a circulation aboutthe can which tends to eifect prompt or rapid refrigeration of thematerial, which refrigeration is substantially uniform throughout thelength of the can. a

It will be noted that the can is wholly closed while in use. Therefore,the necessity for disassembling the parts for cleaning at frequentintervals is dispensed with, such cleaning being required only in theevent that the apparatus is to remain idle for a time. When access tothe interior of the can is desired, the bolts 8 are removed and the head3 moved aside, whereupon the can and agitator 15 may be readilyWithdrawn through the front end of the casing. As is apparent, when thecan is withdrawn, ready access to the interior of the casing may be hadfor cleaning the latter.

What is claimed is 1. An ice cream freezer comprising a casing, acylinder mounted longitudinally therein, and spaced therefrom, spacedforaminous partitions mounted on the bottom of the casing and havingtheir upper edges engaged with the cylinder, the space between thepartitions being for the reception ofa liquid refrigerant, and anagitator mounted in said space for agitating the liquid refrigerant.

2. An ice cream freezer comprising a casing, a freezing chamber mountedin the casing and spaced therefrom, the space around the freezingchamber being for the reception of a liquid refrigerant and a solidrefrigerant, an agitator mounted to rotate in the easing adjacent thefreezing chamber, and means for preventing the solid refrigerant frominterfering with rotation of the agitator.

3. An ice cream freezer comprising a casing, a. freezing cylindermounted within said casing and spaced therefrom to provide anice-containing chamber between said cylinder and said casing, spacedforaininous partitions interposed between the casing and the lower partof said cylinder to provide an intermediate space for a liquidrefrigerant, and an agitator located in said space and having its endsjournaled in the opposite ends of the casing to rotate for agitating theliquid refrigerant.

4. An ice cream freezer comprising a castitions interposed between thecasing and ing, a freezing cylinder mounted within said .space betweenthe partitions whereby the casing and spaced therefrom to provide an .liuid refrigerant is agitated.

ice-containing chamber between said cylinn testimony whereof I affix mysignature i der andsaid casing, spaced foraminous parin presence of twosubscribing witnesses.

v WILLIAM H. JONES. the lower part of said cylinder to provideWitnesses: an intermediate space for-a liquid refriger- D. W. MUMAW,ant, and a rotatable element journaled in the J. V. MURPHY.

Copies of this patent may be obtained for five .cents each, byaddressing the Commissioner of Patents. Washington, D. .0.

